JPH10211670A - Soundproof sheet for floor - Google Patents
Soundproof sheet for floorInfo
- Publication number
- JPH10211670A JPH10211670A JP1649997A JP1649997A JPH10211670A JP H10211670 A JPH10211670 A JP H10211670A JP 1649997 A JP1649997 A JP 1649997A JP 1649997 A JP1649997 A JP 1649997A JP H10211670 A JPH10211670 A JP H10211670A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- asphalt
- floor
- weight
- thermoplastic resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Building Environments (AREA)
- Floor Finish (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、床用防音シートに
関する。The present invention relates to a soundproof sheet for floors.
【０００２】[0002]
【従来の技術】近年、住宅において、衛生上の配慮や自
然の感覚が好まれ、木質系床材が多く用いられている
が、木質系床材を用いた場合、子供が走り回ったり、飛
び跳ねたり、重いものを落下させたときに生じる重量衝
撃音が問題となっている。そこで、この問題を解決すべ
く、二階床部の根太上に、床下地材としてパーティクル
ボードを敷設し、更に衝撃音を防止すべく軽量発泡コン
クリートを敷設していた。2. Description of the Related Art In recent years, wooden flooring materials are often used in homes due to hygiene considerations and natural sensations. When wooden flooring materials are used, children may run around or jump. However, heavy impact noise generated when a heavy object is dropped is a problem. Therefore, in order to solve this problem, a particle board is laid as a floor base material on the joists of the second floor, and lightweight foam concrete is laid to prevent impact noise.
【０００３】しかしながら、軽量発泡コンクリートは重
量が４５〜６０ｋｇ／ｍ3 と非常に重いため施工性に劣
り、しかも衝撃音を防止するには、厚みを７５〜１００
ｍｍと厚くする必要があり、床の厚みを薄くし部屋の空
間をおおきく取りたいという要望に答えることができな
かった。[0003] However, lightweight foamed concrete is very heavy, having a weight of 45 to 60 kg / m 3, and therefore is inferior in workability.
mm, and could not respond to the demand to reduce the floor thickness and increase the room space.
【０００４】特開平８ー１５０６８２号公報には、フィ
ラーと、アスファルトからなるバインダーとを含有する
シート状基材の一面に独立気泡発泡体が積層されてなる
制振・遮音シートが記載されている。Japanese Patent Application Laid-Open No. 8-150682 describes a vibration-damping and sound-insulating sheet in which a closed-cell foam is laminated on one surface of a sheet-like base material containing a filler and a binder made of asphalt. .
【０００５】上記シートは厚みが薄く、あまり重くもな
いので施工性も良く、部屋の空間も大きくとることがで
きるという効果を有しているが、冷蔵庫、家具等の高荷
重が置かれ荷重が集中した場合へたりが発生し、又依然
として５００ＨＺ以上の周波数の防音効果は不足してい
た。[0005] The above-mentioned sheet is thin and not very heavy, so that it has good workability and can have a large space in the room. Settling occurred when concentrated, and the soundproofing effect at frequencies of 500 Hz or higher was still insufficient.
【０００６】[0006]
【発明が解決しようとする課題】本発明の目的は、薄く
て軽量で施工し易く、施工後荷重が集中してもへたりが
発生しにくく且つ周波数５００ＨＺでも防音効果の優れ
た床用防音シートを提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a sound-insulating sheet for floors which is thin, lightweight and easy to be constructed, does not easily set even when a load is concentrated after construction, and has an excellent soundproofing effect even at a frequency of 500 Hz. Is to provide.
【０００７】[0007]
【課題を解決するための手段】本発明の床用防音シート
は、独立気泡性熱可塑性樹脂発泡シートの両面に、ゴ
ム、熱可塑性樹脂及びアスファルトよりなるバインダー
１０〜３５重量％と無機充填材９０〜６５重量％とから
なり、密度が１．５〜５．０ｇ／ｃｍ3 の制振シートが
積層されてなることを特徴とする。According to the soundproof sheet for floors of the present invention, 10 to 35% by weight of a binder made of rubber, thermoplastic resin and asphalt and inorganic filler 90 are provided on both sides of a foamed closed cell thermoplastic resin sheet. ６５65% by weight and a vibration damping sheet having a density of 1.5 to 5.0 g / cm 3 is laminated.
【０００８】本発明で使用される発泡シートは、熱可塑
性樹脂で製造された独立気泡性のものである。上記熱可
塑性樹脂としては、従来から発泡シートの製造に使用さ
れている任意の熱可塑性樹脂が使用可能であるが発泡シ
ートは柔軟であるのが好ましく、例えば、ポリエチレ
ン、ポリプロピレン、ポリ塩化ビニル等が挙げられ、ポ
リエチレンが好適に使用される。[0008] The foamed sheet used in the present invention is a closed cell made of a thermoplastic resin. As the thermoplastic resin, any thermoplastic resin conventionally used in the production of a foamed sheet can be used, but the foamed sheet is preferably flexible, for example, polyethylene, polypropylene, polyvinyl chloride and the like. And polyethylene is preferably used.
【０００９】上記発泡シートは、独立気泡率が低いと、
床用防音シートとして使用され荷重がかかった際にへた
ってしまい防音効果が低下してしまうので、独立気泡率
は高いほうが好ましく、８０％以上が好ましく、より好
ましくは９０％以上である。The above foam sheet has a low closed cell rate,
Since it is used as a floor soundproofing sheet and becomes damp when a load is applied and the soundproofing effect is reduced, the closed cell rate is preferably higher, preferably 80% or more, more preferably 90% or more.
【００１０】発泡シートの発泡倍率は小さくなると重く
なり防音効果が低下し、大きくなると破泡し易くなるの
で、５〜４０倍が好ましく、より好ましくは１０〜３５
倍である。又、発泡シートの厚みは特に限定されない
が、厚くなるとへたり易くなり、薄くなると防音効果が
低下するので１〜１０ｍｍが好ましく、より好ましくは
２〜５ｍｍである。The foaming ratio of the foamed sheet is preferably 5 to 40 times, more preferably 10 to 35, because the smaller the foaming ratio, the heavier and the soundproofing effect is reduced, and the larger the foaming ratio, the more easily the foam breaks.
It is twice. The thickness of the foamed sheet is not particularly limited. However, the thickness is preferably 1 to 10 mm, more preferably 2 to 5 mm.
【００１１】本発明で使用される制振シートは、ゴム、
熱可塑性樹脂及びアスファルトよりなるバインダー１０
〜３５重量％と無機充填材９０〜６５重量％とからな
る。上記ゴムとしては、例えば、天然ゴム、ブタジエン
ースチレン共重合体、ブタジエンーアクリロニトリル共
重合体、ポリクロロプレン、ポリブタジエン、ポリイソ
プレン、エチレンープロピレンージエン三元共重合体
（ＥＰＤＭ）、ウレタンゴム、ジクロロエタンー四硫化
ナトリウム重縮合物、ジメチルポリシロキサン等が挙げ
られる。The vibration damping sheet used in the present invention is made of rubber,
Binder 10 made of thermoplastic resin and asphalt
-35% by weight and 90-65% by weight of inorganic filler. Examples of the rubber include natural rubber, butadiene-styrene copolymer, butadiene-acrylonitrile copolymer, polychloroprene, polybutadiene, polyisoprene, ethylene-propylene diene terpolymer (EPDM), urethane rubber, dichloroethane -Sodium tetrasulfide polycondensate, dimethylpolysiloxane and the like.
【００１２】上記熱可塑性樹脂としては、例えば、ポリ
エチレン、ポリプロピレン、エチレンー酢酸ビニル共重
合体、ポリ塩化ビニル等が挙げられる。上記アスファル
トとしては、天然アスファルト、ストレートアスファル
ト、ブローンアスファルト、カットバックアスファルト
等が挙げられる。Examples of the thermoplastic resin include polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyvinyl chloride and the like. Examples of the asphalt include natural asphalt, straight asphalt, blown asphalt, cutback asphalt, and the like.
【００１３】制振シートを構成するバインダーは、上記
ゴム、熱可塑性樹脂及びアスファルトよりなり、その組
成は適宜決定されればよいが、一般にゴム、熱可塑性樹
脂及びアスファルトが重量比で１：０．５〜１．５：
０．５〜１．５の割合で混合されるのが好ましい。The binder constituting the vibration damping sheet is composed of the above rubber, thermoplastic resin and asphalt, and the composition thereof may be appropriately determined. Generally, the weight ratio of rubber, thermoplastic resin and asphalt is 1: 0. 5-1.5:
It is preferable to mix at a ratio of 0.5 to 1.5.
【００１４】上記無機充填材としては、一般に樹脂用の
充填材として使用されているものであれば、特に限定さ
れず、例えば、鉄、鉛、亜鉛等の金属粉、炭酸カルシウ
ム、炭酸バリウム、硫酸バリウム、酸化チタン、マイ
カ、ガラス粉、セラミック粉などが挙げられる。制振シ
ートの密度は１．５〜５．０ｇ／ｃｍ3 と大きいので、
無機充填材としては比重は２．０以上のものが好まし
く、硫酸バリウム（比重４．０）及び鉄粉（比重７．
８）が好適に使用される。The inorganic filler is not particularly limited as long as it is generally used as a filler for a resin, and examples thereof include metal powders such as iron, lead and zinc, calcium carbonate, barium carbonate, and sulfuric acid. Examples include barium, titanium oxide, mica, glass powder, and ceramic powder. Since the density of the damping sheet is as large as 1.5 to 5.0 g / cm 3 ,
The inorganic filler preferably has a specific gravity of 2.0 or more, and includes barium sulfate (specific gravity 4.0) and iron powder (specific gravity 7. 7).
8) is preferably used.
【００１５】制振シートは上記バインダーと無機充填材
よりなるが、バインダーの添加量が少なくなるとシート
の成形が困難になり、密度が大きくなって施工性が低下
し、多くなると防音性が低下するので、バインダー１０
〜３５重量％と無機充填材９０〜６５重量％よりなる。The vibration damping sheet is composed of the above binder and an inorganic filler. If the amount of the binder is small, it becomes difficult to form the sheet, the density is increased, the workability is reduced, and if the amount is large, the soundproofing property is reduced. So the binder 10
-35% by weight and 90-65% by weight of inorganic filler.
【００１６】制振シートの密度は、小さくなると防音性
が低下し、大きくなると施工性が低下しコストが高くな
るので１．５〜５．０ｇ／ｃｍ3 に限定される。制振シ
ートの硬度は、小さくなると局部的に荷重がかかった際
に凹みが生じ発泡シートが破壊され防音効果が低下し、
高くなるとクッション性が低下するのでＪＩＳ Ｋ ６
３０１（加硫ゴム物理試験方法によるスプリング式硬さ
試験Ａ型）に従って測定した硬度が４０〜９８が好まし
い。The density of the damping sheet is reduced and sound insulation property is lowered, largely the workability is restricted to 1.5~5.0g / cm 3 since high cost decreases. When the hardness of the vibration damping sheet is reduced, when a load is locally applied, a dent occurs and the foam sheet is destroyed, and the soundproofing effect is reduced,
JIS K 6
The hardness measured according to 301 (spring type hardness test A type by the vulcanized rubber physical test method) is preferably 40 to 98.
【００１７】制振シートの厚みは、薄くなると防音効果
が低下し、局部的に荷重がかかった際に破壊され易くな
り、厚くなると施工しにくくなるので０．３〜５．０ｍ
ｍが好ましい。When the thickness of the vibration damping sheet is reduced, the soundproofing effect is reduced, and the vibration damping sheet is easily broken when a load is locally applied.
m is preferred.
【００１８】本発明の床用防音シートは、上記発泡シー
トの両面に制振シートが積層されてなるが、その積層方
法は任意の方法が採用されてよく、例えば、接着剤で接
着一体化する方法が挙げられる。The soundproofing sheet for floors of the present invention is formed by laminating a vibration damping sheet on both sides of the foamed sheet, and the laminating method may be any method. For example, the laminating method may be integrated by bonding with an adhesive. Method.
【００１９】本発明の床用防音シートは、木造建築物、
鉄筋建造物等の床下地材として使用される。木造建築物
では、例えば、根太の上にパーティクルボード等の床下
地材を敷設し、その上に本発明の防音シートを敷設し、
最後に木製等の床材を敷設して床構造体が形成される。
又、鉄筋建造物では、例えば、コンクリートスラブ上に
本発明の防音シートを敷設し、その上に木製等の床材を
敷設して床構造体が形成される。The soundproof sheet for floors of the present invention can be used for wooden buildings,
It is used as floor base material for reinforced buildings. In a wooden building, for example, a floor base material such as a particle board is laid on a joist, and a soundproof sheet of the present invention is laid thereon,
Finally, a wooden or other floor material is laid to form a floor structure.
In a reinforced building, for example, a soundproof sheet of the present invention is laid on a concrete slab, and a floor material such as a wooden material is laid thereon to form a floor structure.
【００２０】[0020]
（実施例１）ストレートアスファルト６重量部、エチレ
ンー酢酸ビニル共重合体６重量部、ＥＰＤＭ６重量部，
鉄粉２５重量部、硫酸バリウム５７重量部及びプロセス
オイル１重量部からなる配合物を混練した後カレンダー
ロールに供給し、厚み１．５ｍｍ、密度３．０ｇ／ｃｍ
3 、硬度６５の制振シートを得た。得られた制振シート
を、厚み３ｍｍ、発泡倍率３０倍のポリエチレン発泡シ
ート（独立気泡率９７％）の両面にアクリル系接着剤を
用いて接着し、厚み６ｍｍの本発明の床用防音シートを
得た。(Example 1) 6 parts by weight of straight asphalt, 6 parts by weight of ethylene-vinyl acetate copolymer, 6 parts by weight of EPDM,
A mixture consisting of 25 parts by weight of iron powder, 57 parts by weight of barium sulfate and 1 part by weight of process oil is kneaded, and then supplied to a calender roll to have a thickness of 1.5 mm and a density of 3.0 g / cm.
3. A vibration damping sheet having a hardness of 65 was obtained. The obtained vibration damping sheet is adhered to both sides of a polyethylene foam sheet (closed cell ratio: 97%) having a thickness of 3 mm and an expansion ratio of 30 by using an acrylic adhesive, and a soundproof sheet for floors of the present invention having a thickness of 6 mm is formed. Obtained.
【００２１】（実施例２）ストレートアスファルト６重
量部、ポリプロピレン６重量部、ＥＰＤＭ６重量部，鉄
粉２５重量部及び硫酸バリウム５７重量部からなる配合
物を混練した後カレンダーロールに供給し、厚み１．５
ｍｍ、密度３．０ｇ／ｃｍ3 、硬度９７の制振シートを
得た。得られた制振シートを用い実施例１で行ったと同
様にして、厚み６ｍｍの本発明の床用防音シートを得
た。(Example 2) A mixture comprising 6 parts by weight of straight asphalt, 6 parts by weight of polypropylene, 6 parts by weight of EPDM, 25 parts by weight of iron powder and 57 parts by weight of barium sulfate was kneaded, and then supplied to a calender roll. .5
A vibration damping sheet having a thickness of 3.0 mm, a density of 3.0 g / cm 3 and a hardness of 97 was obtained. In the same manner as in Example 1 using the obtained vibration damping sheet, a 6 mm-thick soundproof sheet for floors of the present invention was obtained.
【００２２】（比較例）ストレートアスファルト２０重
量部、エチレン‐酢酸ビニル共重合体４重量部、硫酸バ
リウム３０重量部、炭酸カルシウム４０重量部及びマイ
カ６重量部からなる配合物を混練した後カレンダーロー
ルに供給し、厚み７．５ｍｍ、密度２．０ｇ／ｃｍ3 、
硬度７５の制振シートを得た。得られた制振シートの一
面に、厚み０．０４ｍｍ、目付量４０ｇ／ｍ2 の不織
布、厚み１．４ｍｍ、発泡倍率２０倍のポリエチレン発
泡体及び前記と同様の不織布をこの順にアクリル系粘着
剤を用いて接着し、厚み９ｍｍの床用防音シートを得
た。Comparative Example A calender roll was prepared by kneading a mixture of 20 parts by weight of straight asphalt, 4 parts by weight of an ethylene-vinyl acetate copolymer, 30 parts by weight of barium sulfate, 40 parts by weight of calcium carbonate and 6 parts by weight of mica. To a thickness of 7.5 mm, a density of 2.0 g / cm 3 ,
A vibration damping sheet having a hardness of 75 was obtained. On one surface of the obtained vibration damping sheet, a non-woven fabric having a thickness of 0.04 mm, a basis weight of 40 g / m 2 , a polyethylene foam having a thickness of 1.4 mm, a foaming ratio of 20 times, and a non-woven fabric similar to the above were sequentially placed in an acrylic pressure-sensitive adhesive. To obtain a 9 mm-thick soundproof sheet for floors.
【００２３】得られた床用防音シートを用い衝撃音吸収
性及び荷重変移性を下記に示す方法で測定し、結果を表
１に示した。 （衝撃音吸収性力）根太上に厚み１５ｍｍのパーティク
ルボードを敷設し、その上に床用防音シートを敷設し、
更にその上に３ｍｍの木製床材を敷設し、ＪＩＳ Ａ
１４１８に準拠しタッピングマシンを使用して衝撃音を
測定し、ＪＩＳ Ａ １４１９に従って遮音等級を測定
した。但し、比較例で得られた床用防音シートについて
は、制振シートがパーティクルボード側にくるように敷
設した。Using the obtained soundproof sheet for floors, the impact sound absorbing property and the load transfer property were measured by the following methods, and the results are shown in Table 1. (Impact sound absorbing power) Lay a 15mm thick particle board on the joist, lay a floor soundproof sheet on it,
Furthermore, a wooden flooring of 3 mm is laid on it, and JIS A
The impact sound was measured using a tapping machine according to 1418, and the sound insulation rating was measured according to JIS A1419. However, the soundproof sheet for floor obtained in the comparative example was laid so that the vibration damping sheet came to the particle board side.
【００２４】（荷重変移性）得られた床用防音シートの
一面（比較例で得られた床用防音シートについては制振
シート側の面）に厚み１５ｍｍのパーティクルボードを
積層し、他面に厚み６ｍｍの化粧合板を積層して４５０
×４５０×２７ｍｍの資料を得た。得られた資料を剛性
のある台上に化粧合板が上になるように設置し、その中
央部に直径５０ｍｍの載荷板を載置した。その載荷板上
に１０Ｋｇの荷重を１０秒毎にかけ、８０Ｋｇになった
後更に６０秒荷重をかけた時の資料中央部の沈み量を測
定した。(Load transferability) A particle board having a thickness of 15 mm is laminated on one surface of the obtained soundproof sheet for floor (for the soundproof sheet for floor obtained in the comparative example, the surface on the vibration damping sheet side), and on the other surface. Laminate 6mm thick decorative plywood to 450
A sample of × 450 × 27 mm was obtained. The obtained material was placed on a rigid table such that the decorative plywood faced upward, and a loading plate having a diameter of 50 mm was placed at the center thereof. A load of 10 kg was applied to the loading plate every 10 seconds, and the amount of sinking at the center of the sample when a load of 60 kg was applied after reaching 80 kg was measured.
【００２５】[0025]
【表１】 [Table 1]
【００２６】実施例１及び２で得られた床用防音シート
は、比較例で得られた床用防音シートよりも厚みが薄い
にもかかわらず、同等の遮音等級、即ち防音効果を示し
ていた。The soundproofing sheets for floors obtained in Examples 1 and 2 exhibited the same sound insulation grade, that is, the soundproofing effect, though they were thinner than the soundproofing sheets for flooring obtained in Comparative Examples. .
【００２７】[0027]
【発明の効果】本発明の床用防音シートの構成は上述の
通りであるから、衝撃音吸収性に優れており、上階にお
いて床に物を落下させたり、子供が走り回っても下階へ
の衝撃音が緩和でき、特に５００ＨＺ以上の周波数の防
音性が優れている。又、表面の制振シートは硬度が高い
ので荷重が集中してもへたりにくく、かつ、軽量で厚み
も薄くすることができ、施工性がよく部屋の空間も大き
く取ることができる。The construction of the soundproof sheet for floors of the present invention is as described above, so that it is excellent in absorbing shock noise, and it is possible to drop objects on the floor on the upper floor or go down to the lower floor even if children run around. Can be mitigated, and the soundproofness at a frequency of 500 Hz or more is particularly excellent. Further, since the surface of the vibration damping sheet has a high hardness, the sheet is hard to be set even when a load is concentrated, and is light and thin, so that workability is good and a room space can be made large.
Claims (1)
面に、ゴム、熱可塑性樹脂及びアスファルトよりなるバ
インダー１０〜３５重量％と無機充填材９０〜６５重量
％とからなり、密度が１．５〜５．０ｇ／ｃｍ3 の制振
シートが積層されてなる床用防音シート。1. A foamed sheet of a closed-cell thermoplastic resin comprising on both sides 10 to 35% by weight of a binder made of rubber, thermoplastic resin and asphalt and 90 to 65% by weight of an inorganic filler, having a density of 1.5. floor soundproofing sheet damping sheet is formed by lamination of to 5.0 g / cm 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1649997A JPH10211670A (en) | 1997-01-30 | 1997-01-30 | Soundproof sheet for floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1649997A JPH10211670A (en) | 1997-01-30 | 1997-01-30 | Soundproof sheet for floor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10211670A true JPH10211670A (en) | 1998-08-11 |
Family
ID=11917979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1649997A Withdrawn JPH10211670A (en) | 1997-01-30 | 1997-01-30 | Soundproof sheet for floor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10211670A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002115365A (en) * | 2000-10-11 | 2002-04-19 | Sekisui Chem Co Ltd | Fire resistive soundproof roof |
| JP2003074135A (en) * | 2001-09-03 | 2003-03-12 | Shizuoka Rekisei Kogyo Kk | Vibration control sound insulation sheet |
| KR20030086784A (en) * | 2002-05-07 | 2003-11-12 | 우진물산 주식회사 | Sound and electromagnetic wave-proof sheet |
| KR100443456B1 (en) * | 2002-04-30 | 2004-08-09 | 주식회사 신양테크 | Sound absorbing pad |
| KR100480511B1 (en) * | 2001-09-25 | 2005-03-31 | 주식회사 한국발보린 | Water soluble soundproofing. applies a rust prevention coating proposal manufacture method and this material and coating the method which it does |
| KR20050096483A (en) * | 2004-03-30 | 2005-10-06 | 주식회사 이이엠 | Sound absorbing materials for a building |
| WO2006005164A1 (en) * | 2004-07-08 | 2006-01-19 | Soprema Inc. | Thermoacoustic and insulating membrane |
| JP2007015292A (en) * | 2005-07-08 | 2007-01-25 | Sekisui Chem Co Ltd | Damping material |
| JP2014043726A (en) * | 2012-08-28 | 2014-03-13 | Fukuvi Chem Ind Co Ltd | Impact-absorbing floor material |
| EP2862639A1 (en) * | 2013-08-27 | 2015-04-22 | Shanghai Yike Green Engineering Co., Ltd. | Utilization of paint slag-containing waste limestone powder as raw material for damping sheet and treatment process thereof |
-
1997
- 1997-01-30 JP JP1649997A patent/JPH10211670A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002115365A (en) * | 2000-10-11 | 2002-04-19 | Sekisui Chem Co Ltd | Fire resistive soundproof roof |
| JP2003074135A (en) * | 2001-09-03 | 2003-03-12 | Shizuoka Rekisei Kogyo Kk | Vibration control sound insulation sheet |
| KR100480511B1 (en) * | 2001-09-25 | 2005-03-31 | 주식회사 한국발보린 | Water soluble soundproofing. applies a rust prevention coating proposal manufacture method and this material and coating the method which it does |
| KR100443456B1 (en) * | 2002-04-30 | 2004-08-09 | 주식회사 신양테크 | Sound absorbing pad |
| KR20030086784A (en) * | 2002-05-07 | 2003-11-12 | 우진물산 주식회사 | Sound and electromagnetic wave-proof sheet |
| KR20050096483A (en) * | 2004-03-30 | 2005-10-06 | 주식회사 이이엠 | Sound absorbing materials for a building |
| WO2006005164A1 (en) * | 2004-07-08 | 2006-01-19 | Soprema Inc. | Thermoacoustic and insulating membrane |
| JP2007015292A (en) * | 2005-07-08 | 2007-01-25 | Sekisui Chem Co Ltd | Damping material |
| JP2014043726A (en) * | 2012-08-28 | 2014-03-13 | Fukuvi Chem Ind Co Ltd | Impact-absorbing floor material |
| EP2862639A1 (en) * | 2013-08-27 | 2015-04-22 | Shanghai Yike Green Engineering Co., Ltd. | Utilization of paint slag-containing waste limestone powder as raw material for damping sheet and treatment process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20031216 |
|
| A761 | Written withdrawal of application |
Free format text: JAPANESE INTERMEDIATE CODE: A761 Effective date: 20050704 |